The communications app TeleMessage, which was spotted on former US national security adviser Mike Waltz's phone, has ...

Message contents and government official contact information were obtained during the breach, 404 Media reports.

An encrypted messaging app used by the Trump administration temporarily suspended its operations Monday after suffering a ...

Mike Waltz's exit from the Trump administration comes on the heels of the Signal chat scandal. Here's what happened.

Mike Waltz, the national security adviser for President Donald Trump, is seen in photos using Signal during a Cabinet meeting ...

More than a month after he drew criticism for using Signal to discuss an impending military attack, Waltz was seen using what ...

A photo taken this week showed Mike Waltz using an app that looks like—but is not—Signal to communicate with top officials.

Mike Waltz was photographed using Signal in a Cabinet meeting the day before Trump announced he was replacing him as national ...

President Donald Trump's outgoing national security adviser Mike Waltz was photographed using Signal on his phone during ...

The Trump administration ousted national security advisor Mike Waltz and other staffers with the National Security Council, ...

National security adviser Mike Waltz and his deputy, Alex Wong, are exiting the administration, CBS News’s Jennifer Jacobs ...

President Donald Trump says he is nominating national security adviser Mike Waltz as United Nations ambassador while ...